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29 Cards in this Set
- Front
- Back
action potential |
is a change in electrical potential that occurs when a cell membrane is stimulated adequately to permit ion exchange between the intra and extracellular spaces |
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absolute refractory period |
is the time during which the cell membrane cannot be stimulated to depolarize |
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relative refractory period |
is a period during which the membrane may be stimulated to excitation again but only with greater than typical stimulation
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nodes of ranvier |
of the axon myelin promote saltatory conduction |
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neurotransmitter |
is discharged into the synaptic cleft stimulating the postsynaptic neuron. |
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THICK |
activation of a muscle fiber cause the release of calcium in to the environment of what myofilaments |
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_______ twitch muscle fibers remain contracted longer than _____ twitch fibers |
slow, fast |
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Muscle Spindles |
provide feedback to the neuromotor system about muscle length, tension, motion, and position. |
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Association |
higher cognitive processing occurs generally in _________ areas. |
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tempro-occipital-parietal association |
area is involved in language function |
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Flaccid |
dysarthria results from damage to LMN's whereas UMN Lesions result in spastic dysarthria |
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hyperkinetic |
dysarthria is the result of damage to the inhibitory processes of the extrapyramidal systems |
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prefrontal |
area of the cerebrum appears to be involved in higher function related to motor output such as inhibition of motor function and the ability to change motor responses , whereas the Top association area is involved in language function |
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limbic association |
area integrates information related to affect, motivation, and emotion |
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Left hemisphere |
in most individuals is dominant for language and speech, processes, brief duration stimuli, and performs detailed analysis |
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right hemisphere |
appears to process information in a more holistic fashion, preferring spatial and tonal information |
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wernicke's |
damage to this area in the dominant hemisphere usually results in a receptive language deficit with relatively intact speech fluency |
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Broca's |
damage to this area in the dominant hemisphere often results in loss of speech fluency manifested as Broca's aphasia |
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arcuate |
damage to this fasciculus will result in conduction aphasia |
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VII Facial Nerve |
Quite important for speech.it inner area the facial muscles of expression and tear glands.It also mediates the sense of taste for a portion of the tongue. This nerve supplies all of the facial muscles |
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V trigeminal nerve |
This nerve is an extremely important mixed nerve for speech production. This means it has both sensory and motor components. This nerve provides motor inner action to the muscles of mastication it also transmits sensory info from the face. |
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V trigeminal nerve |
This nerve is an extremely important mixed nerve for speech production. This means it has both sensory and motor components. This nerve provides motor inner action to the muscles of mastication it also transmits sensory info from the face. |
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The v trigeminal divides into 3 parts why are they |
Ophthalmic branch, maxillary branch, mandibular branch |
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Ophthalmic nerve |
Is entirely sensory. It transmits general sensory info from the skin to upper face forehead scalp cornea iris upper eyelid |
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Ophthalmic nerve |
Is entirely sensory. It transmits general sensory info from the skin to upper face forehead scalp cornea iris upper eyelid |
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Maxillary nerve |
Is sensory. It transmits info from lower eyelid skin on side of nose upper jaw teeth lip nasal cavities sinuses |
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Ophthalmic nerve |
Is entirely sensory. It transmits general sensory info from the skin to upper face forehead scalp cornea iris upper eyelid |
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Maxillary nerve |
Is sensory. It transmits info from lower eyelid skin on side of nose upper jaw teeth lip nasal cavities sinuses |
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Mandibular nerve |
Is mixed it has afterwork and efferent parts |